Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848872 | Optical fiber core collator | Masahiko Fukuda | 1989-07-18 |
| 4840482 | Method of coated fiber identification in optical transmission network | Shuzo Suzuki | 1989-06-20 |
| 4822399 | Glass preform for dispersion shifted single mode optical fiber and method for the production of the same | Hiroo Kanamori, Hiroshi Yokota, Gotaro Tanaka, Yoichi Ishiguro, Masahiro Takagi +1 more | 1989-04-18 |